213252466 has 16 divisors (see below), whose sum is σ = 384816960. Its totient is φ = 86583600.

The previous prime is 213252449. The next prime is 213252467. The reversal of 213252466 is 664252312.

It is a super-2 number, since 2×213252466² = 90953228510162312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213252467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400585 + ... + 401116.

It is an arithmetic number, because the mean of its divisors is an integer number (24051060).

Almost surely, 2^213252466 is an apocalyptic number.

213252466 is a deficient number, since it is larger than the sum of its proper divisors (171564494).

213252466 is a wasteful number, since it uses less digits than its factorization.

213252466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801729.

The product of its digits is 17280, while the sum is 31.

The square root of 213252466 is about 14603.1663004980. The cubic root of 213252466 is about 597.4451234884.

The spelling of 213252466 in words is "two hundred thirteen million, two hundred fifty-two thousand, four hundred sixty-six".